Ejector.



J. R. BARKER.

EJEOTOR.

APPLICATION FILED NOV. 14, 1913.

' INVENTOR (fa/222 ZZfi W W Patented Nov. 10, 1914.

v Q Ina/Mrs WITNESSES ,menaor thi .i ate'rial 'be ufr'e 'geii t; i -ilii h a u s ant a l Tr..

UNITED STATES PATENT OFFICE.

JOHN RICHARD BARKER, F JACKSONVILLE, FLORIDA.

EJEGTOR.

contracted opening.

Among the. objects of the invention to simplify and-improve thissort of devices whereby the force of the ropelling stream is betterava'iled of for t e dredging and. discharging ctions than heretofore.

invention w ill"hereinafter be more fully described and claimeda'nd illustrated in the drawings forming a part of. this specification inwhich like characters .of reference indicatecorresponding parts inall the views;

Figure'l is a ilngitfidiilal .s c on thru h th principalparts of this invention Fig 2 is a transverse sectionon the line 2 2j of Fig. 1; and Fig. 315a detail-lot apart of the nozzle mechanism shown in .Fig. 1.

. "The several. parts ofthe device maybe made of any suitable.materials,1and'jthe rela 5 tive sizes a and: proport'ions j aswell I as the "A device "made accordance; invention ncludes a base l0'hav1ng a- '1 drical central portionfof" a... size andrihrm,

- conforming to the main" disch rge. pipe and 5' having a flan ge 11;: adaptingf it-to- .fbe 0 .1 nected to a snction'xpi 121 as; by: means Jot,

, clamping "bolts.f:. At- 1; 'other'fendi off the barrel portion of the base fi s formed 1 inter; grall ,'.,subsjtantially diskl shaped' flange of. comparatively widefexpans .fian'ge i's provided. with a plural :ings B having. having the r the; axis of the'base-or the direct- Specification of Letters Patent. Application filed November 14, 1913. Serial NoQSOOQSGS.

Patented Nov. 10, 1914..

member constituting, together with the other parts to which it is attached, apressure; chamber. This shell 14 is' largest at its loweror receiving end and tapers somewhat towarditsu pe-rend. Said lower end is secured rigid y. to the outer edge of the base flange 13. v I

The numeral 15 indicates "a nozzle regis tering with and constituting a continuation of the cylindrical part of the base and is rigidly secured to the flange l3thereof-by means of a flange-16 and clamping bolts extending through both flanges. The proper falinement of these members is determined and maintained also by means of. a rabbetedconnection at 16, The discharge end of the nozzleis rounded and tapered onthe outside,

as shown at 15*, the extreme end, however, of the tapered portion being conical; in

form as shown at. 15 Thefore'going and other objects of the 1 At 171 show a head constituting another portion of the nozzle mechanism. This surface 18 and-a conical-surface 18"; Said mouth also includes a slightledge l9oppoi an enlargement of the receiving end-of the mouth, the mouth ortion beyond the nozzlesite the extreme end o f-the nozzle formed by being slightly contracted-. tow'ard its dis charge end and having substantially the same .f'dia-meter as thebore of the nozzle;

The head lfis seolllfedin place with respect' to the' shell'ordrum 14-by means of a flange .117. bolted to a flange; 1a. at the I di SGh-Qrge end of the"'-drul'nl. -The-intermediateportiomof the head-{as shown'la'tll 'i is prourrounding fthe discliarge i end of" jth'e A discharge pipe -estates "-20 and is connected in any suitablemailner. tothedis: L

sgi a y "ar a ged-ribs 2,1,: a] long path, t 'efpur ose? o' @materi'a beingjdischarged to :ibefl rotated- A 1: charge and of thefhead;..l-7zf The discharge tially an angle of 60 degrees at or near the the end of the et 15 perfectly square and discharge end of the head, as shown by the dotted lines in Fig. 1. A pressure fluid is adapted to be delivered into and through the pressure chamber or drum 14 by means of delivery pipes22 secured in the aforesaid openings 13 of the base flange l3 and such fluid is delivered under a high pressure from the opposite end of the drum and in a substantially direct line from the delivery pipes 22 into the head 17. The stream of such fluid being delivered through the conical opening tends to condense at the apex of the cone as indicated at 23, and hence forms a substantial closure for the discharge pipe 20. Such stream, however, passing on ward under force causes a vacuum to be formed in or through the base and nozzle with the result that .sand, mud or other loose earth being excavated will be drawn into and through the nozzle and thence into and through the discharge pipe.

Among the purposes or advantages for the offset indicated at 19 is to allow the water or other repelling medium to leave not to drag along the sides of'the casting. Among the advantages also of the outward swell 17 of the head is that in forcing water or other propelling fluid through the jet at high pressure, there is a tendency for an eddy to be formed, the retarding effect of which is overcome by such outward curve or swell. In addition to the employment of this device for excavating purposes, it is obvious that the features of novelty covered thereby are applicable for use in connection with vacuum cleaners for household use, for instance, or for conveyers of other dry granular or pulverulent materials.

Having thus described my invention, I

claim as new and desire to secure by Letters Patent 1. In a device of the character set forth, the combination of a base having a disklike flange, a nozzle secured to said flange, in coaxial alinement with the base, a drum surrounding the nozzle and secured to the outer edge of the base flange, means to introduce pressure fluid into the space between the drum shell and the nozzle through said base flange, ahead secured to the outer end of the drum and having a portion in close spaced relation to the end of the nozzle forming a conical discharge opening for the.

pressure fluid, the head being formed adjacent the end of the nozzle with an offset 19 surrounding the fluid space, and a discharge pipe connected to the delivery end of the head.

2. In a device of the character set forth, the combination of a base having a cylindrical barrel portion and an outwardly 'projecting disk-like flange, a cylindrical nozzle conforming in size and having rabbeted engagement in alinement. with said base, means to secure the nozzle to said base flange, a drum surrounding the nozzle and having connection to the outer edge of said disk-like flange, said drum forming with the nozzle a pressure chamber, and a head secured to the drum, the adjacent surfaces of the nozzle and head forming a thin hollow conical discharge space for the pressure fluid from the pressure chamber, the mouth of the head just beyond the nozzle being slightly enlarged forming a ledge opposite the edge of the nozzle, and that portion of the head beyond the mouth being enlarged at l7 forming a high pressure chamber, substantially as and for the purposes set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JOHN RICHARD BARKER.

Witnesses:

WM. H. DOLLEY, WILLIAM S. LA Man. 

